脳内木片異物の3例—そのCT診断と治療方針について

Three Cases of Intracranial Wooden Foreign Body

I．はじめに

　頭蓋内木片異物の診断は頭部単純写のみでは正確を期し難く，CT scanが有用である．しかし木片の場合，通常のCT撮影条件では空気との鑑別が困難で，画像処理条件を変える必要がある．今回われわれは3例の脳内木片異物の症例を経験したが，うち1例は経鼻的に脳室まで木片が刺入し，気脳症を合併して空気と木片の鑑別に苦労した．他の2例は経眼窩的に刺入した症例であったが，これらを呈示し，診断上の問題点および異物の処理法につき検討を加え報告する．

Three cases of intracranial wooden foreign body are reported discussing the diagnostic and therapeutic prob-lems. First case is a 50-year-old man. After drinking, he drove a bike and fell to the ground. On admission the wooden foreign body could not been detected in appearance. CT scan showed low density area similar to air in bilateral anterior horn of lateral ventricle. The patient was treated for traumatic pneumocephalus at first. Later, it proved that he was stabbed with a for-eign body penetrating into the contralateral frontal lobe through the left nasal cavity.